A member asked:

What are possible side effects of allergy pills?

A doctor has provided 1 answer

Sedation: First generation antihistamines, such as Benadryl (diphenhydramine) can cause drowsiness but second generation anthistamines such as Allegra and Claritin are non sedating. Zyrtec and xyzal are mildly sedating. All cause a dry mouth.

Answered 6/24/2014

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